/Engine/Source/Runtime/Experimental/Chaos/Public/PhysicsProxy/GeometryCollectionPhysicsProxy.h
[TManagedArray](API\Runtime\Chaos\GeometryCollection\TManagedArray)< [TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [FParticle](API\Runtime\Chaos\PhysicsProxy\FGeometryCollectionPhysicsProxy\FParticle) > > & GetExternalParticles()